Briefcase



FIG. 1 is a perspective view of a briefcase showing my new design according to a first embodiment;

FIG. 2 is a perspective view of a briefcase showing my new design according to a second embodiment;

FIG. 3 is a front elevational view of the briefcase according to the embodiment of FIG. 1;

FIG. 4 is a front elevational view of the briefcase according to the embodiment of FIG. 2;

FIG. 5 is a rear elevational view of the briefcase according to the embodiment of FIG. 1;

FIG. 6 is a rear elevational view of the briefcase according to the embodiment of FIG. 2;

FIG. 7 is a side elevational view of the briefcase according to the embodiment of FIG. 2, the opposite side being a mirror image thereof;

FIG. 8 is a top view of the briefcase according to the embodiment of FIG. 1;

FIG. 9 is a bottom view of the briefcase according to the embodiment of FIG. 1; and,

FIG. 10 is a view of the briefcase according to the embodiment of FIG. 1 in the opened position.

The broken lines illustrate portions of the briefcase, according to the first and second embodiments, which form no part of the claimed design. 

CLAIM The ornamental design for a briefcase, as shown and described. 